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Author Topic: Good inexpensive power supply for 3 cards?  (Read 603 times)
toben
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February 10, 2014, 09:12:52 PM
 #1

Hello,

I need a good and not terribly expensive PSU for 2x R9 270 and 1x 78750.

My current 500w PSU will not do even 2 of the 270's.
http://www.amazon.com/gp/product/B001G0WPLK/ref=oh_details_o09_s00_i01?ie=UTF8&psc=1

In theory it should power all 3 but I cant figure out the rails argument. Let me know if you have a solution.

Thanks in advance!
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InCoinsITrust
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February 10, 2014, 11:07:30 PM
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Try to use good 850W unit with one power line, like corsair PSU's.
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February 11, 2014, 02:34:11 AM
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Yes, a quality 850w psu will power two 270's and one 78XX just fine. Heck, I've got 3 7870's running on a 650w XFX unit without issue (no overclocking though). Newegg has the XFX 850w non-modular bronze unit for $100 AR.
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February 11, 2014, 09:21:38 AM
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Lets remember that psu best efficiency is at 60-70% load, and it will live longer if loaded at that percentage.
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